Transcript
M22 GSM / GPRS Wireless Module DATASHEET Rev. 0.2 AUG/05/ 2004
COPYRIGHT BENQ Corporation This document contains proprietary technical information which is the property of BenQ Corporation and is issued in strict confidential and shall not be disclosed to others parties in whole or in parts without written permission of BenQ Corporation The documents contain information on a product, which is under development and is issued for customer evaluation purposes only. BENQ may make changes to product specifications at any time, without notice. BenQ Corp. Networking & Communications BG 18 JiHu Road, Nei-Hu, Taipei 114, Taiwan, R.O.C. Tel: +886-2-2799-8800 Fax: +886-2-2799-8332 http://www. benq.com
© 2004 BenQ Corp. M22 DATASHEET
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Confidential Property Version: 0. 2 – 2004/08/05
HISTORY
Version
Date
VER: 0.1
12-DEC-2003
VER: 0.2
05-AUG-2004
© 2004 BenQ Corp. M22 DATASHEET
Notes FIRST RELEASE ADD HUMIDITY
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1.
INTRODUCTION .............................................................................................................5 1.1. 1.2.
2.
DESCRIPTION..........................................................................................................5 APPLICATION DEVICE..........................................................................................5
FEATURES ......................................................................................................................6 2.1. GENERAL CHARACTERISTICS ......................................................................................6 2.2. VOICE/DATA SERVICE .................................................................................................8 TELE S ERVICE .........................................................................................................................8 SHORT M ESSAGE S ERVICE ......................................................................................................8 FAX SERVICE ..........................................................................................................................8 CIRCUIT SWITCH .....................................................................................................................8 PACKET SWITCH ......................................................................................................................8 2.3. SUPPLEMENTARY S ERVICE ..........................................................................................9 NUMBER IDENTIFICATION........................................................................................................9 CALL OFFERING ......................................................................................................................9 CALL COMPLETION .................................................................................................................9 MULTI-PARTY..........................................................................................................................9 CALL- BARRING .......................................................................................................................9 2.4. RF FUNCTIONALITIES ...............................................................................................10 MAXIMUM TX POWER ..........................................................................................................10 PARAMETRIC P ERFORMANCE ................................................................................................10 SENSITIVITY..........................................................................................................................10 RADIO FREQUENCY...............................................................................................................10
3.
HARDWARE DESCRIPTION...................................................................................... 11 3.1. INTERFACE............................................................................................................ 11 3.2. FUNCTIONAL DIAGRAM.............................................................................................12 3.3. PIN DESCRIPTION ......................................................................................................13 DESCRIPTION TABLE .............................................................................................................13 UART/RS232 .......................................................................................................................13 UART 2 ................................................................................................................................14 BU ........................................................................................................................................14 GPIO ....................................................................................................................................14 LED DRIVER ........................................................................................................................14 SIM FUNCTION .....................................................................................................................14 VBAT ...................................................................................................................................15
© 2004 BenQ Corp. M22 DATASHEET
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AUDIO FUNCTION ..................................................................................................................15 BGND ..................................................................................................................................15 INTERRUPT ............................................................................................................................15 POWER ON............................................................................................................................16 ANTENNA ..............................................................................................................................16 3.4. M22 TERMINAL DEFINITION .....................................................................................16 3.5. ELECTRICAL CHARACTERISTICS ................................................................................17 OPERATING VOLTAGE/CURRENT CHARACTERISTICS .............................................................19 AUDIO UPLINK CHARACTERISTICS ........................................................................................19 AUDIO DOWNLINK CHARACTERISTICS ..................................................................................19 GLOBAL CHARACTERISTICS ..................................................................................................19 3.6. ENVIRONMENTAL......................................................................................................20 3.7. PHYSICAL PACKAGE ..................................................................................................21 4.
SOFTWARE CHARACTERISTICS............................................................................23 4.1. 4.2. 4.3.
INTRODUCTION .........................................................................................................23 SOFTWARE ARCHITECTURE .......................................................................................23 SOFTWARE ARCHITECTURE OF W IRELESS PSTN .......................................................23
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1. INTRODUCTION 1.1.
DESCRIPTION
Overview The document describes all the functions, features, and interfaces of the GSM/GPRS Tri band Module M22 from BenQ. The M22 GSM/GPRS module can provide wireless communication solution for any product that has requirement of voice communication and data transmission through state of the art cellular technology. With the BENQ M22 GSM/GPRS module, devices are enhanced in both functionality and usability based on state of the art wireless technology.
1.2.
APPLICATION DEVICE This module is designed to satisfy manufacturers, which also have a physical dimension con-
cern of embedded GSM/GPRS features built into their products. Some main application devices of this module are: l
Wireless PSTN
l
Mobile Trunk
l
Car Phone/Telemetric
l
Wireless Terminal
l
Alarm/Securities System
l
Remote control
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2. Features 2.1.
General Characteristics
l
BAND: EGSM 900/DCS 1800/PCS 1900 MHZ TX 880~915 MHz 1710~1785MHz 1850~1910MHz
EGSM DCS PCS
l
RX 925~960MHz 1805~1880MHz 1930~1990MHz
GSM/GPRS: Phase 2+ Compliance i.
GPRS Class 4: Max 3 downlink, 1 uplink, max 4 slot
ii.
GPRS Class B: Simultaneous
l
attach
l
activation
l
monitor
l
no simultaneous traffic.
i.
Coding Scheme: l
CS1
- 9.05 kbps
l
CS2
- 13.4 kbps
l
CS3
- 15.6 kbps
l
CS4
- 21.4 kbps
l
Support SIM Interface: 3V
l
Form factor
l
i.
Dimension: 55.5 x 40 x 5.95 mm
ii.
Weight: 13 g
Power Operation Voltage: 3.2V – 4.2V
l
Power Consumption: Speech Mode: 230 mA (min), 260 mA (max) Standby Mode: < 6 mA (paging rate 2),< 3 mA (paging rate 9) at GSM 900Mhz GPRS : 250 mA (max)
l
Hardware Output: 44 Pins female connector interface. l
UART/RS232
l
UART 2
l
BU
Buzzer Output
l
GPIO
General Purpose I/O
l
Power On
Power On Pin
l
LED Driver
LED Driver, Paging
Software Debug
© 2004 BenQ Corp. M22 DATASHEET
RS232 transmit interface
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l
l
SIM
SIM Function
l
VBAT
Battery Voltage Input
l
Audio
Earphone/MIC/Hand free
l
Keypad Interrupt
l
BGND
GND
l
ANT
Antenna
Keypad Interrupt
Software Interface:
GSM Rec. 27.07 l
General
l
Call Control
l
Network Service
l
ME Control and Status
l
ME Errors
l
TIA IS -101
GSM Rec. 27.05 l
SMS related services
l
General Configuration
l
Message Configuration
l
Message Receiving and Reading
l
Message Sending and Writing
ITU-T Rec. V25ter l
General TA Control
l
Call Control and Command Response
l
Data Compression
ITU-T Rec. T.32 l
Action Command
l
DCE Response
l
Service Command
Note: For software AT commands, please refer to the M22 AT Command List.
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2.2.
Voice/Data Service
Tele Service l
Speech Service With EFR (Enhance Full Rate)/FR (Full Rate)/HR (Half Rate) Codec.
l
Emergency Call
l
DTMF Tone Generation
Short Message Service l
SMS with MT (Mobile Terminate)/PP, MO (Mobile Originated)/PP
l
Delivery Report
l
Cell Broadcast
FAX Service l
Direction: MOC (Mobile originated call) & MTC (Mobile terminated call)
l
Fax GSM TS 3.45 fax transparent mode
l
TS 61, 62
l
TIA/EIA 578, Fax class 1, Interface to PC for GSM & PSTN
l
TIA/EIA 592, Fax class 2, Interface to PC for PSTN
l
ITU -T V.17 (14400 bps), V29 (9600bps), V27ter (2400/4800 bps)
l
Transmission speed rate: 2400, 4800, 7200, 9600bps
Circuit Switch l
Data GSM TS 4.21 transparent mode
l
Data GSM TS4.22 transparent mode
l
Data transmission mode: asynchronous (normal)
l
Radio channel: full rate
l
Transmission speed rate: 2400, 4800, 9600 bps with data compression max 14400bps
Packet Switch l
GPRS Class B device
l
Multi-Slot Transmission up to Class 4, 1 uplink slot, 3 downlink slot
l
Coding Scheme CS1 – CS4 Supported
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2.3.
Supplementary Service
Number identification l
Calling line identification presentation (CLIP)
l
Calling line identification restriction (CLIR)
l
Connected line identification presentation (CoLP)
l
Connected line identification restriction (CoLR)
Call Offering l
Call forwarding unconditional (CFU)
l
Call forwarding on mobile subscriber busy (CFB)
l
Call forwarding on no reply (CFNRy)
l
Call forwarding on mobile subscriber not reachable (CFNRc)
Call Completion l
Call waiting (CW)
l
Call hold (HOLD)
Multi-Party l
MPTY Supported
Call-barring 1.
Barring of all outgoing calls (BAOC)
2.
Barring of outgoing international calls (BOIC)
3.
Barring of outgoing international calls (BOIC- xHC)
4.
Barring of all incoming calls (BAIC)
5.
Barring of incoming calls when roaming (BIC-Roam)
© 2004 BenQ Corp. M22 DATASHEET
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2.4.
RF Functionalities
Maximum TX Power The performance of the transmitter meets test requirement GSM 11.10 Chapter 13. Band EGSM DCS PCS
Max 33 dBm ±2dBm 30 dBm ±2dBm 30 dBm ±2dBm
Min 5 dBm ±5dBm 0 dBm ±5dBm 0 dBm ±5dBm
Parametric Performance Tests carried out at -20ºC, 25ºC and 60ºC for each voltage 3.6V, 3.8V and 4.0V. The Measure Peak Phase, RMS Phase, frequency error, power level, and static sensitivity meets GSM 11.10 specifications Band EGSM DCS PCS
Peak Phase Error <20° <20° <20°
RMS Phase Error <5° <5° <5°
Sensitivity The performance of the receiver meets test requirement GSM 11.10 Chapter 14. Band EGSM DCS PCS
Typical -106 dBm -105 dBm -105 dBm
Min -104 dBm -103 dBm -103 dBm
Radio Frequency Radio Frequency (900 MHz EGSM) Frequency Range Channel Spacing Number of Channels Modulation Duplex Spacing Frequency Stability Power Output Output Impedance Spurious Emission Radio Frequency (1800 MHz) Frequency Range Channel Spacing Number of Channels Modulation Duplex Spacing Frequency Stability Power Output Output Impedance Spurious Emission Radio Frequency (1900 MHz) Frequency Range Channel Spacing Number of Channels Modulation Duplex Spacing Frequency Stability Power Output Output Impedance Spurious Emission
© 2004 BenQ Corp. M22 DATASHEET
TX 880-915 MHz; RX 925-960 MHz 200 KHz 124 Carriers x 8 (TDMA) GMSK 45 MHz +/- 0.1 ppm (Uplink TX) 33 dBm Class 4 (2 W peak) 50 Ohm -36 dBm up to 1 GHz (< -30 dBm > 1 GHz) TX 1710-1785 MHz; RX 1805-1880 MHz 200 KHz 374 Carriers x 8 (TDMA) GMSK 95 MHz +/- 0.1 ppm (Uplink TX) 30 dBm – 0 dBm 50 Ohm -36 dBm up to 1 GHz (< -30 dBm > 1 GHz) Compatible with phase 2 feature TX: 1850~1910MHz; RX: 1930~1990MHz 200KHz 299 Carriers x 8 (TDMA) GMSK 80 MHz +/- 0.1 ppm (Uplink TX) 30 dBm – 0 dBm 50 Ohm -36 dBm up to 1 GHz (< -30 dBm > 1 GHz) Compatible with phase 2 feature
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3. Hardware Description 3.1.
INTERFACE The function description of the M22 module is illustrated as the following table. The pins of the
M22 module support functions like UART, GPIO, AUDIO, SIM … etc. These features can meet customer design requirement for Car Phone. 44 Pins female connector interface Group UART/RS232 UART2 BU GPIO Power On LED Driver SIM VBATRF VBATBB Audio Keypad Interrupt BGND NC
Pin no. 6 2 1 6 1 1 4 3 1 7 1 10 1
Description RS232 transmit Interface Software Debug Buzzer Output General Purpose I/O Power On Pin LED Driver, Paging SIM Function Power input for RF Power input for BB Earphone/MIC/Hand Free Keypad Interrupt GND NC
Pin no. 1
Description Antenna interface
Antenna interface (MMCX connector) Group ANT
Detailed Pin descriptions and electrical characteristics will be given in the upcoming contents.
© 2004 BenQ Corp. M22 DATASHEET
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3.2.
Functional Diagram
RF INTERFACE
ANTENNA
FLASH S R A M
AUDIO
SIM
LED
UART
BASEBAND PROCESSOR
U A R T 2
VBAT
B U
M22 DATASHEET
12
N O
© 2004 BenQ Corp.
ER W PO
GPIO
Confidential Property Version: 0. 2 – 2004/08/05
3.3.
Pin Description
Description Table Pin BGND IO 10 ROW4 PWON TXD2 RXD2 BU IO 12 / DCD
Description M22 wake up External device Keypad Interrupt (Ext. device wake up of M22) Power On UART2-Transmit Data UART2-Receive Data Buzzer Output
VBATRF
RF PA Power Voltage Input
I/O Ground O I I O I O
GPIO 12
PU PU PU
Reset
Config
Input Input Input Output / 1 Input 0
Output / 0 Input Input 1 Input 0
Input
Output / 0
O
UART1-Transmit Data UART1-Receive Data UART1-Request To Send UART1-Clear To Send UART1-Data Set Ready GPIO 8/ Data Terminal Ready JTAG-Data Input GPIO 13 GPIO 1 Re-download Data path and audio path switch Power off mode switch control signal to open or link the connection between system (Host) and module (client). IO 11 Low :; Connect High: Disconnect Default = Connect ( Low ) AUXI Auxiliary hands free amplifier negative input(-) MICIN Microphone amplifier negative input(-) MICIP Microphone amplifier positive input(+) MICBIAS Microphone bias supply EARP Earphone amplifier positive output(+) EARN Earphone amplifier negative output(-) AUXOP Auxiliary hands free amplifier positive Output(+) SIM_RST SIM Reset SIM_IO SIM Input / Output SIM_CLK SIM Clock VRSIM Regulator SIM Output LEDA LED Driver, Paging Indicator
Power
TXD RXD RTS CTS DSR IO8/DTR TDI IO 13 IO1 / RI IO 6
VBATBB
PU
O I O I I O I I O O
PU PD PU LPU
typ
max
3.3
3.6
5.0
Output / 1 Input Output / 1 Input Input 1 Input Output / 1 Input Input
1 Input 1 Input Input Output / 0 Input Input Output / 0 Output / 1
Input
Output / 0
O
I I I power O O O O I/O O O I
0 0 0
Power
System Power Voltage Input
min
V
Input Input Input Output(2v/2.5v) Output Output Output Output Input / Output Output Output Input min typ max 3.3
3.6
4.5
V
UART/RS232 The UART includes the following additional features -
Hardware flow control (DSR, RTS/CTS)
-
Auto-baud rate with the possibility of baud-rates ranging from 1200 to 115.2K bits.
Pin Name TXD RXD RTS CTS DSR IO 8/DTR
Pin Out 34 33 32 31 30 29
© 2004 BenQ Corp. M22 DATASHEET
Pull PU PD PU
Reset 1 Input Output / 1 Input Input 1
Config Output/1 Input Output/1 Input Input Output/1
13
Description Transmit Data Receive Data Request to Send Clear to Send Data Set Ready Data Terminal Ready
Confidential Property Version: 0. 2 – 2004/08/05
Note: The difference between Reset and Config is in the pin definition table Pin IO 1 / IO 12 / IO 8 is dedicated to UART functions.
UART 2 Used for software debug. Pin Name TXD2 RXD2
Pin Out 8 37
Pull PU
Reset 1 Input
Config Output/1 Input
Description Transmit Data Receive Data
BU When there is an incoming call, the Buzzer will generate a pulse. Pin Name BU
Pin Out 36
Pull
Reset 0
Config Output/0
Description Buzzer Output Pin
GPIO The module provides 6 GPIO pins configurable in read or write mode. Pin Name IO 10 IO 13 IO 6 IO 11
Pin Out 39 28 25 27
IO 12/ DCD IO 1/ RI
Pull
9 24
Reset Input 1 Input Input
Config Output/0 Input Output/1 Output / 0
Input Input
Output/0 Output/0
Description Module wake up external device GPIO13 Re-download data path and audio path switch M22 Power off, connection between M22 and system (Host) open or short switch signal GPIO12/Data Carrier Detect GPIO1/Ring Indicator
Note: 1) IO 10 timing sequence is defined in design guide. 2) IO 1 and IO 12 dedicate for UART feature (RI / DCD).
LED Driver LEDA is dedicated for paging identification. The initial status is listed as follows: i.
In the initial mode (no voltage input), this pin will be in HIGH status.
ii.
In standby mode it will be pulled low for 500 ms and then pulled high for 500 ms, alternately.
iii.
In active mode (Incoming call) it will be pulled low 125 ms and pull high 125 ms.
Pin Name LEDA
Pin Out
Pull
Reset
6
Config Input
Description LED DRIVER, paging Indicator
Note: 1) The maximum current is 10 mA. 2) The LEDA voltage range is 0.4 V ~ VBATBB
SIM Function The SIM Card digital interface in ABB insures the translation of logic levels between DBB and SIM Card for the transmission of 3 different signals: a clock signal, derived from a clock elaborated in DBB, to SIM Card (SIM_CLK); a reset signal, from DBB to the SIM Card (SIM_RST); and serial data from DBB to SIM Card (SIM_IO) and vice-versa. © 2004 BenQ Corp. M22 DATASHEET
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Pin Name SIM_CLK SIM_RST SIM_IO VRSIM (3V)
Pin Out 11 13 12 23
Pull
Reset 0 0 0
Config Output Output Input /Output Output
Description SIM Clock SIM Reset SIM Input / Output Regulator SIM Output
VBAT The maximum and minimum voltage will be defined in the Electrical Characteristics Table. Pin Name VBATRF VBATRF VBATRF VBATBB
Pin Out 41 42 43 1
Pull
Reset
Config Input Input Input Input
Description RF PA Power Voltage input RF PA Power Voltage input RF PA Power Voltage input System Power Voltage input
Audio Function There is a choice of differential EAR Phone output and differential Microphone input depending on customers' use. In addition, auxiliary pins can be used for hands-free. Pin Name EARP EARN MICP MICN AUXOP AUXI MICBIAS
Pin Out 20 21 16 17 22 18 15
Pull
Reset
Config Output Output Input Input Output Input Output
Description Earphone amplifier positive output(+) Earphone amplifier negative output(-) Microphone amplifier positive input(+) Microphone amplifier negative input(-) Auxiliary hands free amplifier positive output(+) Auxiliary hands free amplifier negative input(-) Microphone bias supply
BGND Pin Name BGND BGND BGND BGND BGND BGND BGND BGND BGND BGND
Pin Out
Pull
Reset
Config
2 3 4 5 10 19 26 35 40 44
Description GND GND GND GND GND GND GND GND GND GND
Interrupt For dual processor use, an interrupt signal from the external processor can be sent to the module when needed. Pin Name IO10 ROW 4
Pin Out 39 7
Pull PU
Reset Input Input
Config Output/0 Input
Description Module wakes up host system External Device interrupt M22
Note: Detailed interrupt sequences between the host and module is given in the M22 design guide.
© 2004 BenQ Corp. M22 DATASHEET
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Power ON The Power On Pin needs to be pulled low for at least 120ms to operate Pin Name PWON
Pin Out 38
Pull PU
Reset
Config Input
Description Power On
Pin Out Pull MMCX connector
Reset
Config
Description Antenna interface (50 Ohm)
Antenna Pin Name Ant
3.4.
M22 Terminal Definition VBATBB
1
44
GND
GND
2
43
VBATRF
GND
3
42
VBATRF
GND
4
41
VBATRF
GND
5
40
GND
LEDA
6
39
IO10
ROW4
7
38
PWON
TXD2
8
37
RXD2
9
36
BU
GND
10
35
GND
SIM_CLK
11
34
TXD
SIM_IO
12
33
RXD
SIM_RST
13
32
RTS
NC
14
31
CTS
MICBIAS
15
30
DSR
MICIP
16
29
IO8
MICIN
17
28
IO13
AUXI
18
27
IO11
GND
19
26
GND
IO12 / DCD
EARP
20
25
IO6
EARN
21
24
IO1 / RI
AUXOP
22
23
VRSIM
© 2004 BenQ Corp. M22 DATASHEET
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3.5.
Electrical Characteristics
Function Description /Name 2 GND Ground 1 VBATBB System power input
Pin
6
23
PARAMETER
Current LEDA LED driver, paging DIGOUT Supply voltage Active mode Sleep mode VRSIM Regulator SIM output SIMSEL='0' SIMSEL='1' (Default)
Min
Typ
Max
Unit
3.3
3.6
1.65 2.7
1.8 2.85
4.5 10 VBATBB 10 1 1.95 3
V mA V mA mA V V
5M/3V
Hz/V
1M/3v 11 SIM_CLK SIM_clock
(Voh)
CLKOUT
0.7*VRSIM
V
(Vol)
0.2*VRSIM
Rated Current
2
(Voh)
0.7*VRSIM
V
(Vol) 13 SIM_RST SIM _reset
10
22
19 21 20 15
GND
MICIP
17
MICIN
18
AUXI
3
GND
27
IO11
2 0.4 2
IO 6
IO 1/RI
mA V mA
Ground
Microphone amplifier input(+) Nominal Ref. Level (MIMicrophone amplifier CIP-MICIN) input(-) Differential input resis tance (MICIP- MICIN) Auxiliary microphone amplifier input: single ended Ground (Voh) (Vol) GPIO:Input/Output11 DIGOUT
GPIO: Input/Output 6 DIGOUT
GPIO: Input/Output 1 DIGOUT
M22 DATASHEET
1.2 100 200k 10
ohms
33/120
ohms
2
V
2.5
V mVrms
-10
dBm0
100
dBm0 mVrms
0.616 2
V mA
2.24 0.616 2
V mA
2.24
(Vol)
0.616
17
pF
33/120
2.24
Rated current (Voh) (Vol)
Kohms pF Ohms
365
Rated current
© 2004 BenQ Corp.
1
32.5
Rated current (Voh) 24
0.2*VRSIM
Rated Current (Vol) Rated Current
Min. output resistive load Max. output capacitive load Min. out- Common mode min. resistive load at AUXOP or Auxiliary hands free AUXOP put resis - AUXON amplifier output(+) tive load Common mode max. capac itive load at AUXOP or AUXON GND Ground Earphone amplifier 1.5 Vpp/Output EARN output(-) swing 3.9 Vpp Earphone amplifier 1.5 Vpp/Output swing EARP output(+) 3.9 Vpp MICBIAS=0 Microphone bias MICBIAS DC- Power supply MICBIAS=1
16
25
DIGOUT
V mA
2mA
Confidential Property Version: 0. 2 – 2004/08/05
V
Function Description /Name 26 GND Ground 4 GND Ground
Pin
28
IO13
PARAMETER
GPIO:Input/Output13
DIGIN/OUT
29 IO 8/DTR Data Terminal Ready DIGOUT
30
DSR
RS232: ready
Data
31
CTS
RS232: send
Clear
32
RTS
RS232: request to DIGOUT send
33
34
RXD
TXD
set to
RS232: receive data
DIGIN DIGIN
DIGIN
RS232: transmit data DIGOUT
Min
(Vih) (Vil) (Voh) (Vol)
Typ
1.96 -0.5 2.24
9
2 3.3
(Vil)
-0.5
0.84
(Vih) (Vil) (Voh) (Vol) Rated current (Vih)
1.96 -0.5 2.24
3.3 0.84
1.96
3.3
(Vil)
-0.5
0.84
Rated current (Voh) (Vol)
2.24
4
BU
37
RXD2
UART- IRDA: receive DIGIN data
8
TXD2
UART- IRDA: mit data
36
38
7
PWON
ROW4
(Voh) (Vol)
0.616 4
trans-
POWER ON pin
DIGOUT Power On input
Keyboard matrix 5*5 Interrupt row access (Input)
Rated current (Vih) (Vil) (Voh)
IO10
GPIO 10
5
GND
Ground
:Input/Output
DIGI/O
© 2004 BenQ Corp. M22 DATASHEET
V
0.616
V mA
4
V V mA
0.7*VBATBB 0.3*VBATBB 3.3 0.84
1.96 -0.5 1
V mA
2.24 0.616
18
V
Hz
3.3 0.84
(Vol) Rated current
V
mA
0.616
Rated current (Vih) (Vil) (Vih) (Vil)
V
5275
4 1.96 -0.5 2.24
(Vol)
Rated current (Voh) 39
5.0 5.0 5.0
2
(Vol)
V
mA
0.616 345
V
mA
2.24
(Voh)
V
mA
1
3.6 3.6 3.6
V V mA
0.616
Rated current Pulse width modu- PWM lated signal for Signal buzzer (OUTPUT) OUT
V
1.96
3.3 3.3 3.3
DIGOUT
3.3 0.84
Rated current (Vih)
Rated current
GPIO:Input/Output12
Unit
0.616
35 GND Ground 41 VBATRF Battery voltage input 42 VBATRF Battery voltage input 43 VBATRF Battery voltage input 40 GND Ground 44 GND Ground IO12 / DCD
Max
2
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V mA
Operating Voltage/Current Characteristics Parameter Description Supply Voltage range VBATRF Peak VBATRF Current Average VBATRF Current Average Standby mode VBATRF current Paging Rate 9 Vih High-level input voltage Vil Low -level input voltage Voh High-level output voltage Vol Low -level output voltage SIM_CLK Output frequency VRSIM SIMSEL=1
Min 3.3
Typ 3.6 1.8
230
Max 5.0
Unit V A mA mA V V V V MHz V
260 3
1.96 -0.5 2.24 1.625 2.7
3.3 0.84
2.85
0.616 3.25 3.0
Audio Uplink Characteristics Parameter Maximum Input Range (MICIP- MICIN) Nominal Ref. Level (MICIP- MICIN) Differential Input Resistance Micro amplifier gain (MIC) Maximum Input Range (AUXI) Nominal Ref. Level (AUXI) Micro amplifier gain (AUXI) Input Resistance at AUXI DC Level at MICBIAS Current Capability at MICBIAS
Conditions Min Typ Inputs 3 dBm0 (Maximum digital sample amplitude with PGA 32.5 gain set to 0 dB) -10 36 25.6 Input 3 dBm0 (Maximum digital sample amplitude with PGA 365 gain set to 0dB) -10 VBDFAUXG=0 4.6 VBDFAUXG=1 28.2 VBDFAUXG=0 100 170 MICBIAS=0 2.0 0
Max Unit mVrms dBm0 KO dB mVrms dBm0 dB dB 24.5 KO Volt 2 mA
Note: (1) MICIP/MICIN and AUXI inputs are multiplexed, only one is available at the same time interval .
Audio Downlink Characteristics Parameter Differential Minimum Resistive load at EARP- EARN
Conditions Output swing 3.9 Vpp Output swing 1.5 Vpp
Differential Maximum Resistive load at EARP- EARN Common Mode Minimum Resistive load at EARP- EARN Common Mode Maximum Resistive load at EARP- EARN Differential Minimum output resistive load at AUXOP Differential Minimum capacitor load at AUXOP Common Mode Minimum resistive load at AUXOP Common Mode Maximum Capacitor load at AUXOP
Min
Typ 120 33
Max
Unit O O pF KO pF KO pF KO pF
100 200 10 1
1.2 100 200 10
Global Characteristics Parameter Conditions Maximum Output Swing 5% distortion and 120O EARP – EARN 5% distortion and 33O Earphone amplifier gain Earphone amplifier state in power down Maximum Output swing at AUXOP 5% distortion maximum, load = 1k O Auxiliary amplifier gain (AUXO) AUXO amplifier state in power down Power Supply Rejection
© 2004 BenQ Corp. M22 DATASHEET
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Min 3.1 1.2
1.6
Typ 3.92 1.5 1 Hi-Z 1.96 -5 Hi-Z 40
Max
Unit Vpp Vpp dB Vpp dB dB
Confidential Property Version: 0. 2 – 2004/08/05
3.6.
Environmental Operational temperature : -20 ~ +60 ℃ Functional temperature : -20 ~ +70 ℃ Storage temperature : -40 ~ +85 ℃ Humidity: 95%
© 2004 BenQ Corp. M22 DATASHEET
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Confidential Property Version: 0. 2 – 2004/08/05
3.7.
Physical Package
Top View
© 2004 BenQ Corp. M22 DATASHEET
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4. Software Characteristics 4.1.
Introduction
The following descriptions define the BenQ M22 module software architecture. For wireless PSTN customers, BenQ provides the supporting AT Commands. For telemetric application, the following is needed: Address book, PC sync, Grouping by Ring Tones, and FAX.
4.2.
Software Architecture
BenQ provides the Layer 1 driver and AT command.
Based on different customer needs, different
software architectures will be supported. This will be defined in the next section. Architecture: n
Layer 1 Driver
n
Protocol Stack/AT Command
n
Basic interface
4.3.
Software Architecture of Wireless PSTN
Due to the fact that there are both processors in BenQ’s Module and the wireless PSTN, the common interface uses the AT Command. The software architecture was showed as the following diagram. Customers can use BenQ provided AT Commands to access the GSM/GPRS network on their platform.
AT Command
Protocol Stack
L1 driver © 2004 BenQ Corp. M22 DATASHEET
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